Custom-made drones whirred around a glowing track for two days, trying to win the $250,000 prize at the “World Drone Prix.” A young man from Britain, known as “Banni UK,” piloted his way to the top.
Robots clean rivers and sort waste, monitor ecosystems, and inspect renewable-energy infrastructure. But even the greenest robot has an environmental footprint.
EPFL engineers have designed acoustic cavities that convert sound waves into thrust, propelling small robots and ultralight aerial vehicles without on-board actuators or electronics.